Patents

      patent sum

      Patents on Transient Stability for Large-Scale Power Systems

      1. U.S. Patent 5,483,462: "On-line Method for Determining Power System Transient Stability" Date of Patent, Jan. 9, 1996 (Inventor: Hsiao-Dong Chiang)
      2. U.S. Patent 5,719,787: "Method for On-Line Dynamic Contingency Screening of Electric Power Systems" Date of Patent, Feb. 17, 1998 (Inventors: Hsiao-Dong Chiang and Cheng-Shan Wang)
      3. U.S. Patent 6,868,311: "Method and System for On-line Dynamical Screening of Electric Power System" Date of Patent, Mar. 15, 2005 (Inventors: Hsiao-Dong Chiang, Atsushi Kurita, Hiroshi Okamoto, Ryuya Tanabe, Yasuyuki Tada, Kaoru Koyanagi, and Yicheng Zhou)
      4. U.S. Patent 7,483,826: "Group-Based BCU Methods for On-Line Dynamical Security Assessments and Energy Margin Calculations of Practical Power Systems" Date of Patent, Jan. 27, 2009 (Inventors: Hsiao-Dong Chiang, Hua Li, Yasuyuki Tada, Tsuyoshi Takazawa, Takeshi Yamada, Atsushi Kurit, and Kaoru Koyanagi)
      5. U.S. Patent 7,761,402: "Group-Based BCU Methods for On-Line Dynamical Security Assessments and Energy Margin Calculations of Practical Power Systems" Date of Patent, July 20, 2010 (Inventors: Hsiao-Dong Chiang, Hua Li, Yasuyuki Tada, Tsuyoshi Takazawa, Takeshi Yamada, Atsushi Kurita, and Kaoru Koyanagi)
      6. U.S. Patent 8,326,589: "Stable equilibrium point (SEP) calculation apparatus of power system" Date of Patent, Dec. 4, 2012 (Inventors: Hsiao-Dong Chiang, Hua Li, Yasuyuki Tada, and Ryuya Tanabe)
      7. Japan Patent 4,276,090; "Method and System for On-line Dynamical Screening of Electric Power System" Date of Patent, March 13, 2009 (Application number 2003-586902, filing date April 21, 2003), (Inventors: Hsiao-Dong Chiang, Atsushi Kurita, Hiroshi Okamoto, Ryuya Tanabe, Yasuyuki Tada, Kaoru Koyanagi, and Yicheng Zhou)
      8. Japan Patent 4,611,908; "Group-Based BCU Methods for On-Line Dynamical Security Assessments and Energy Margin Calculations of Practical Power Systems" Date of Patent, Oct. 22, 2010 (Application number 2006-031327, filing date Feb. 8, 2006), (Inventors: Hsiao-Dong Chiang, Hua Li, Yasuyuki Tada, Tsuyoshi Takazawa, Takeshi Yamada, Atsushi Kurita, and Kaoru Koyanagi)
      9. People’s Republic of China, Patent ZL 038,089,55.6; "Method and System for On-line Dynamical Screening of Electric Power System" Date of Patent, Dec. 10, 2008 (filing date April 21, 2003), (Inventors: Hsiao-Dong Chiang, Atsushi Kurita, Hiroshi Okamoto, Ryuya Tanabe, Yasuyuki Tada, Kaoru Koyanagi, and Yicheng Zhou)

      Patents on Voltage Stability for Large-Scale Power Systems

      1. U.S. Patent 5,642,000: "Method for preventing power collapse in electric power systems" Date of Patent, Jun. 24, 1997 (Inventors: Hsiao-Dong Chiang and Rene Jean-Jumeau)
      2. U.S. Patent 5,796,628: "Dynamic method for preventing voltage collapse in electrical power systems" Date of Patent, Aug. 18, 1998 (Inventors: Hsiao-Dong Chiang and Cheng-Shan Wang)
      3. U.S. Patent 9,964,980: “Method and apparatus for optimal power flow with voltage stability for large-scale electric power systems”, Date of Patent, May 8, 2018, (Inventors: Hsiao-Dong Chiang and Bin Wang)

      Patents on Optimization Technologies

      1. U.S. Patent 7,050,953: “Dynamical Methods for Solving Large-scale Discrete and Continuous Optimization Problems” Date of Patent, May 23, 2006 (Inventors: Hsiao-Dong Chiang, Hua Li)
      2. U.S. Patent 7,277,832: “Dynamical Method for Obtaining Global Optimal Solution of General Nonlinear Programming Problems”, Date of Patent, Oct. 2, 2007, (Inventor: Hsiao-Dong Chiang)
      3. U.S. Patent 9,152,611: “Trust-tech enhanced methods for solving mixed-integer optimization problems”, Date of Patent, Oct. 6, 2015, (Inventors: Hsiao-Dong Chiang, Tao Wang, and Bin Wang)
      4. U.S. Patent 10,733,332: “Systems for solving general and user preference-based constrained multi-objective optimization problems”, Date of Patent, Aug. 4, 2020, (Inventors: Hsiao-Dong Chiang and Shuo Wang)

      Patents on Distribution Network Active Management Applications

      1. U.S. Patent 5,734,586: "System for Achieving Optimal Steady State in Power Distribution Networks" Date of Patent, Mar. 31, 1998 (Inventors: Hsiao-Dong Chiang and Jin-Cheng Wang)
      2. U.S. Patent 10,678,984: “Systems for real-time available delivery capability determination of large-scale distribution networks”, Date of Patent, Jun. 9, 2020, (Inventors: Hsiao-Dong Chiang, Sheng Hao, Wen-Liang Liu, Jun Xiong, Jin-Xiang Chen, Guo-Wei Chen, Yong-Feng Zhang, Gilburt Chiang)

      Patents Pending

      1. U.S. Patent application; “Pseudo-Transient Approach for SEP Computation of Electric Power Systems”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA), Dr. Hua Li (Ithaca, NY, USA), Dr. Yasuyuki Tada (Tokyo, Japan) and Dr. Ryuya Tanabe (Tokyo, Japan)
      2. U.S. Patent application; “Systems for Real-Time Available Transfer Capability Determination of Large Scale Power Systems”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA) and Dr. Yasuyuki Tada (Tokyo, Japan)
      3. U.S. Patent Application, “SYSTEM FOR ACHIEVING REAL-TIME MONITORING AND STATE ESTIMATION IN POWER DISTRIBUTION NETWORKS”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA) and Mr. Gilburt L. Chiang (Atlanta, GA, USA)
      4. U.S. Patent Application, “System for Real-time Detection of Critical Contingency in Power Grids”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA)
      5. U.S. Patent Application, “PSO-assisted Trust Tech Methodology for Nonlinear Optimization”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA) and Dr. Bin Wang (Ithaca, NY, USA)
      6. U.S. Patent Application, “Trust Tech-guided Interior Point Methods for Nonlinear Optimization”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA) and Dr. Bin Wang (Ithaca, NY, USA)
      7. U.S. Patent Application, “Robust Power Flow Methodologies for Distribution Networks with Distributed Generators”, Dr. Hsiao-Dong Chiang (Ithaca, NY, USA), et al.